Temperature-control apparatus for internal-combustion engines.



S. l. FEKETE. TEMPERATURE CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINES.

. APPLICATION FILED JUNE 2. 1915.

1,228,765 T E PatentedJune 5,191.7.

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S..-|. FEKETE. TEMPERATURE CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINES.

I APPLICATION FILED mu: 2. 1916.

32,76 0 Patented June 5, 1917.

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sw a (PM A To. all whom it may concern."

STEPHEN IVAN FEKETE, OLE DETROIT, MICHIGAN, ASSIGNOR TO KENT MOTORS COM- PANY, 0F DETROIT, MICHIGAN, A CQRPORATION OF MICHIGAN.

TEMPERATURE-CONTROL ArrARA'rUs non INTERNAL-COMBUSTION enemas.

Patented June 5, 1917.

Application filed .Tune 2, 1916. Serial No. 101,422.

Be =-it known that l, STEPHEN IVAN FE- KETE, a citizen of the United States, residing at Detroit, county of Wayne, State of Michigan, have invented a certain new and useful Improvement in Temperature-Control Apparatus for Internal-Combustion Engines, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to mechanism by which the temperature in the cooling system of a water cooled internal combustion engine may be automatically regulated so that the temperature in the water jacket surrounding the cylinders shall be main tained substantially constant regardless of the atmospheric temperature or operating conditions. Another object of my invention is to provide means by which when the engine i's'cold and is then started, the temperature in the cooling system shall assume,

v as soon'as possible, the predetermined tem perature.

I am aware that heretofore attempts have been made to accomplish this by checking the flow of water in the cooling system; also by checking the flow 'of air through the radiator by means of movable shutters moved by a thermostat, but I ;have found that neither of these arrangements is adequate to produce uniform working conditions under the ordinary atmospheric changes.

My invention affords meansby which the flow of air through the radiator and the flow of water through the cooling system 'may be simultaneously controlled by means of a single thermostat. The result is that when the engine is started, the predetermined tem.- perature in'the cooling system is reached almost immediately and thereafter this temperature is maintained regardless of changes,

I from the bottom of the radiator to'the pump.

At 16 is shown a frame on which is supported a shutter-composed of a series of vanes 17, pivoted at 18 and operated in unison by a rod 19, pivotally connected to each of the vanes 17, by means of lugs 20, and pivot pins 21. Across the bottom of the radiator is a rock shaft 22, having-an arm 23, connected at 24: to the lower end of the shutter operating rod 19. Around the rock shaft 22 is wrapped one end of a piece of metal tape 26, the other end of which is secured to a thermostat rod 27. This makes a simple and effective connection for operating the shutter from the, thermostat rod, there being no back lash in it.

At 15 is shown the I i It will be understood that I do not limit myself to the pipe 15. The chamber 29 is also connected by pipe 30 with the radiator inlet pipe 14:. This pipe forms a by-pass around the radiator. The thermostat is secured at its rear end to a bridge 31 by nut 32. The rod 27 carries a valve 33 which cotiperates with a seat34, formed in the partition which separates the lower 'part of the radiator from the thermostat chamber 29. The thermostat rod 27 also passes through a flexible diaphragm 35 with which a tight connection is made by means of twojbuttons 36 and 37,

compressed by the nut 38 against the diaphragm. The thermostat-rod is guided at its front end in a housing 39.

The operation of my device is as follows: When the engine is cold,'the contraction of the thermostat will pull back the thermostat rod 27 until the valve 33 is seated, thereby shutting offthe flow of'water through the ing efi'ect.

for a short time, the valve 33, and shutter radiator. It will also close the shutter in front of the radiator by means of the rock shaft 22 and connected parts. When the engine is started, the water in the cylinder jackets will rise through the radiator inlet pipe 14: and descend through the by-pasS to the thermostat chamber 29 since it cannot flow through the radiator. As the water of the cooling system rises in temperature, the thermostat will gradually open the valve 33, permitting a flow through the radiator which will be proportional to the rise in temperature of the water in the cooling system. It will also open the radiator shutter, allowing the current of air to flow through the radiator and increase the cool-- After the engine has been run will assume a stationary position allowing sufficient flow of water through the cooling system and of air through the radiator to maintain the temperature in the cooling system at the predetermined point for which the thermostat is adjusted. Thereafter the temperature of the water in the cooling system will be automatically maintained substantially constant regardless of changes in temperature in the atmosphere or of changes in the working conditions under which the engine is operated. To accomplish this, the thermostat will from time to time move the valve 33 and shutter slightlyto open or close the parts and compensate for differences in temperature.

lVhat I claim is:

1. In combination with an internal combustion engine, a water cooling system including a radiator, a radiator shutter controlling the flow of air through the radiator, a valve controlling the flow of water through the cooling system, and a thermostat operated by the changes in temperature of the water in the cooling system and actuating both the radiator shutter and the valve.

2. In combination with an internal combustion engine, a water cooling system including cylinder jackets, a radiator and pipe connections between said parts, a radiator shutter controlling the flow of air through the radiator, a valve controlling the flow of water through the cooling system, a thermostat located in the pipe connection through which the water flows from the radiator to the cylinder jackets, said thermostat actuating both the radiator shutter and the valve.

3. In combination with an internal com vbustion engine, a Water cooling system including cylinder jackets, a radiator and controlling the flow of air through the ra- I, diator, a valve controlling the flow of Water through the cooling system, said valve being located between the bottom of the radiator andthe by-pass, a thermostat/located in the pipe connection through which the water flows from the radiator to the cylinder jackets, said thermostat actuating both the radiator shutter and the valve.

4. The improved cooling system for inter-, nal combustion engines comprising cylinder jackets, a radiator, pipe connections from the cylinder jackets to the top and bottom of the radiator respectively, a by-pass connecting said pipe connections, a radiator shutter,

a thermostat in the pipe connection through which the water flows-from the bottom of the radiator to the cylinder jackets, said thermostat being opposite the point at which the bypass connects with the said pipe connection, a valve between the by-pass and'the radiator, connections from said thermostat to said valve and said radiator shutter internal combustion engines having a thermostat located in the return pipe from the bottom of the radiator to the cylinder ackets, a thermostat rod pro ecting through the radiator, a valve on said thermostat rod controlling the passage between the bottom of the radiator and the return pipe, a radiator shutter, and connections between the protruding end of the thermostat rod and the radiator shutter by which the radiator shutter is moved by the thermostat simuL taneously with the movement of the valve.

6; In combination with an internal combus'tion engine. a water cooling system including cylinder jackets, a radiator and connections between the cylinder jackets and the top and bottom .of the radiator, a valve between the bottom of the radiator and the bottom connection, a thermostat located in said bottom connection, a thermostat rod. projecting through the movable valve member, andthrough the water space in the bottom of the radiator, a radiator shutter, connections between the thermostat rod and the radiator shutter, there being a diaphragm forming the front wall for a portion of the bottom Water space of the radiator and through which the thermostat rbd projects.

In testimony whereof I afiix my signature, in presence of two witnesses.

STEPHEN IVAN FEKETE. Witnesses:

' -W. H. DEDOU,

C. A. PorrmsToNE, 

